Back plate for a hot water baseboard heating unit



FIG. 1 is a front elevation view, of a back plate for a hydronic heater showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a bottom view thereof.

The left side view is the same as the right side view.

The claimed design has been broken away in the middle in FIGS. 1, 3, 4, and 5 to indicate indeterminate length. 

The ornamental design for a back plate for a hot water baseboard heating unit, as shown and described. 